linux-kernel - Re: [PATCH v4] dt-bindings: qcom: document preferred compatible naming

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Date:   Tue, 5 Jul 2022 19:40:27 +0200
From:   Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>
To:     Stephan Gerhold <stephan@...hold.net>
Cc:     Andy Gross <agross@...nel.org>,
        Bjorn Andersson <bjorn.andersson@...aro.org>,
        Konrad Dybcio <konrad.dybcio@...ainline.org>,
        Rob Herring <robh+dt@...nel.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
        linux-arm-msm@...r.kernel.org, devicetree@...r.kernel.org,
        linux-kernel@...r.kernel.org,
        Srinivas Kandagatla <srinivas.kandagatla@...aro.org>,
        Dmitry Baryshkov <dmitry.baryshkov@...aro.org>,
        Vinod Koul <vkoul@...nel.org>, Alex Elder <elder@...aro.org>,
        Robert Foss <robert.foss@...aro.org>,
        Bhupesh Sharma <bhupesh.sharma@...aro.org>
Subject: Re: [PATCH v4] dt-bindings: qcom: document preferred compatible
 naming

On 05/07/2022 19:19, Stephan Gerhold wrote:
> On Tue, Jul 05, 2022 at 06:13:01PM +0200, Krzysztof Kozlowski wrote:
>> Compatibles can come in two formats.  Either "vendor,ip-soc" or
>> "vendor,soc-ip".  Qualcomm bindings were mixing both of usages, so add a
>> DT schema file documenting preferred policy and enforcing it for all new
>> compatibles, except few existing patterns.
>>
>> Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>
> [...]
>> diff --git a/Documentation/devicetree/bindings/arm/qcom-soc.yaml b/Documentation/devicetree/bindings/arm/qcom-soc.yaml
>> new file mode 100644
>> index 000000000000..0be18c1d2961
>> --- /dev/null
>> +++ b/Documentation/devicetree/bindings/arm/qcom-soc.yaml
> [...]
>> +      pattern: "^qcom,.*(apq|ipq|mdm|msm|qcs|sa|sc|sdm|sdx|sm)[0-9]+.*$"
> 
> FWIW: There is also the "qcm" prefix, used e.g. in "qcom,qcm2290-tlmm".
> 
> Also, the APQ equivalent of "sdm" would be "sda", e.g. SDA845 which is
> used in the DB845c. (Not sure if someone will ever use the SDA variant
> in a compatible though.)

I expect the list/pattern to grow, but of course I can add these now.

Best regards,
Krzysztof